567 lines
14 KiB
C
567 lines
14 KiB
C
/* $NetBSD: mount_nfs.c,v 1.51 2006/05/20 08:06:48 yamt Exp $ */
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/*
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mount_nfs.c 8.11 (Berkeley) 5/4/95";
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#else
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__RCSID("$NetBSD: mount_nfs.c,v 1.51 2006/05/20 08:06:48 yamt Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <syslog.h>
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#ifdef ISO
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#include <netiso/iso.h>
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#endif
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#include <nfs/rpcv2.h>
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#include <nfs/nfsproto.h>
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#include <nfs/nfs.h>
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#include <nfs/nqnfs.h>
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#include <nfs/nfsmount.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <util.h>
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#include <mntopts.h>
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#include "mount_nfs.h"
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#define ALTF_BG 0x00000001
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#define ALTF_CONN 0x00000002
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#define ALTF_DUMBTIMR 0x00000004
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#define ALTF_INTR 0x00000008
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#define ALTF_KERB 0x00000010
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#define ALTF_NFSV3 0x00000020
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#define ALTF_RDIRPLUS 0x00000040
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#define ALTF_MNTUDP 0x00000080
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#define ALTF_NORESPORT 0x00000100
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#define ALTF_SEQPACKET 0x00000200
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#define ALTF_NQNFS 0x00000400
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#define ALTF_SOFT 0x00000800
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#define ALTF_TCP 0x00001000
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#define ALTF_NFSV2 0x00002000
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#define ALTF_PORT 0x00004000
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#define ALTF_RSIZE 0x00008000
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#define ALTF_WSIZE 0x00010000
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#define ALTF_RDIRSIZE 0x00020000
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#define ALTF_MAXGRPS 0x00040000
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#define ALTF_LEASETERM 0x00080000
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#define ALTF_READAHEAD 0x00100000
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#define ALTF_DEADTHRESH 0x00200000
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#define ALTF_TIMEO 0x00400000
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#define ALTF_RETRANS 0x00800000
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static const struct mntopt mopts[] = {
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MOPT_STDOPTS,
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MOPT_FORCE,
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MOPT_UPDATE,
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MOPT_GETARGS,
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{ "bg", 0, ALTF_BG, 1 },
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{ "conn", 0, ALTF_CONN, 1 },
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{ "dumbtimer", 0, ALTF_DUMBTIMR, 1 },
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{ "intr", 0, ALTF_INTR, 1 },
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{ "nfsv3", 0, ALTF_NFSV3, 1 },
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{ "rdirplus", 0, ALTF_RDIRPLUS, 1 },
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{ "mntudp", 0, ALTF_MNTUDP, 1 },
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{ "noresport", 0, ALTF_NORESPORT, 1 },
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#ifdef ISO
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{ "seqpacket", 0, ALTF_SEQPACKET, 1 },
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#endif
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{ "nqnfs", 0, ALTF_NQNFS, 1 },
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{ "soft", 0, ALTF_SOFT, 1 },
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{ "tcp", 0, ALTF_TCP, 1 },
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{ "nfsv2", 0, ALTF_NFSV2, 1 },
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{ "port", 0, ALTF_PORT, 1 },
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{ "rsize", 0, ALTF_RSIZE, 1 },
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{ "wsize", 0, ALTF_WSIZE, 1 },
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{ "rdirsize", 0, ALTF_RDIRSIZE, 1 },
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{ "maxgrps", 0, ALTF_MAXGRPS, 1 },
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{ "leaseterm", 0, ALTF_LEASETERM, 1 },
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{ "readahead", 0, ALTF_READAHEAD, 1 },
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{ "deadthresh", 0, ALTF_DEADTHRESH, 1 },
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{ "timeo", 0, ALTF_TIMEO, 1 },
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{ NULL }
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};
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struct nfs_args nfsdefargs = {
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NFS_ARGSVERSION,
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(struct sockaddr *)0,
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sizeof (struct sockaddr_in),
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SOCK_DGRAM,
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0,
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(u_char *)0,
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0,
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NFSMNT_NFSV3|NFSMNT_NOCONN|NFSMNT_RESVPORT,
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NFS_WSIZE,
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NFS_RSIZE,
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NFS_READDIRSIZE,
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10,
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NFS_RETRANS,
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NFS_MAXGRPS,
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NFS_DEFRAHEAD,
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NQ_DEFLEASE,
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NQ_DEADTHRESH,
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(char *)0,
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};
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int retrycnt = 0;
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int opflags = 0;
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int nfsproto = IPPROTO_UDP;
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int force2 = 0;
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int force3 = 0;
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int mnttcp_ok = 1;
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int port = 0;
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static void shownfsargs(const struct nfs_args *);
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#ifdef ISO
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static struct iso_addr *iso_addr(const char *);
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#endif
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int mount_nfs(int argc, char **argv);
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/* void set_rpc_maxgrouplist(int); */
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static void usage(void);
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#ifndef MOUNT_NOMAIN
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int
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main(int argc, char **argv)
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{
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return mount_nfs(argc, argv);
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}
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#endif
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int
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mount_nfs(int argc, char *argv[])
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{
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int c, retval;
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struct nfs_args *nfsargsp;
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struct nfs_args nfsargs;
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struct nfsd_cargs ncd;
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struct sockaddr_storage sa;
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int mntflags, altflags, i, nfssvc_flag, num;
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char name[MAXPATHLEN], *p, *spec;
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mntoptparse_t mp;
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retrycnt = DEF_RETRY;
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mntflags = 0;
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altflags = 0;
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nfsargs = nfsdefargs;
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nfsargsp = &nfsargs;
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while ((c = getopt(argc, argv,
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"23a:bcCdD:g:I:iKL:lm:o:PpqR:r:sTt:w:x:UX")) != -1)
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switch (c) {
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case '3':
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if (force2)
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errx(1, "-2 and -3 are mutually exclusive");
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force3 = 1;
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break;
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case '2':
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if (force3)
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errx(1, "-2 and -3 are mutually exclusive");
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force2 = 1;
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nfsargsp->flags &= ~NFSMNT_NFSV3;
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break;
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case 'a':
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num = strtol(optarg, &p, 10);
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if (*p || num < 0)
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errx(1, "illegal -a value -- %s", optarg);
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nfsargsp->readahead = num;
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nfsargsp->flags |= NFSMNT_READAHEAD;
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break;
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case 'b':
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opflags |= BGRND;
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break;
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case 'c':
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nfsargsp->flags |= NFSMNT_NOCONN;
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break;
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case 'C':
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nfsargsp->flags &= ~NFSMNT_NOCONN;
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break;
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case 'D':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -D value -- %s", optarg);
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nfsargsp->deadthresh = num;
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nfsargsp->flags |= NFSMNT_DEADTHRESH;
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break;
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case 'd':
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nfsargsp->flags |= NFSMNT_DUMBTIMR;
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break;
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#if 0 /* XXXX */
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case 'g':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -g value -- %s", optarg);
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set_rpc_maxgrouplist(num);
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nfsargsp->maxgrouplist = num;
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nfsargsp->flags |= NFSMNT_MAXGRPS;
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break;
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#endif
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case 'I':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -I value -- %s", optarg);
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nfsargsp->readdirsize = num;
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nfsargsp->flags |= NFSMNT_READDIRSIZE;
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break;
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case 'i':
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nfsargsp->flags |= NFSMNT_INT;
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break;
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case 'L':
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num = strtol(optarg, &p, 10);
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if (*p || num < 2)
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errx(1, "illegal -L value -- %s", optarg);
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nfsargsp->leaseterm = num;
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nfsargsp->flags |= NFSMNT_LEASETERM;
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break;
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case 'l':
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nfsargsp->flags |= NFSMNT_RDIRPLUS;
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break;
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case 'o':
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mp = getmntopts(optarg, mopts, &mntflags, &altflags);
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if (mp == NULL)
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err(1, "getmntopts");
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if (altflags & ALTF_BG)
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opflags |= BGRND;
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if (altflags & ALTF_CONN)
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nfsargsp->flags &= ~NFSMNT_NOCONN;
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if (altflags & ALTF_DUMBTIMR)
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nfsargsp->flags |= NFSMNT_DUMBTIMR;
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if (altflags & ALTF_INTR)
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nfsargsp->flags |= NFSMNT_INT;
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if (altflags & ALTF_NFSV3) {
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if (force2)
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errx(1, "conflicting version options");
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force3 = 1;
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}
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if (altflags & ALTF_NFSV2) {
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if (force3)
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errx(1, "conflicting version options");
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force2 = 1;
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nfsargsp->flags &= ~NFSMNT_NFSV3;
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}
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if (altflags & ALTF_RDIRPLUS)
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nfsargsp->flags |= NFSMNT_RDIRPLUS;
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if (altflags & ALTF_MNTUDP)
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mnttcp_ok = 0;
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if (altflags & ALTF_NORESPORT)
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nfsargsp->flags &= ~NFSMNT_RESVPORT;
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#ifdef ISO
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if (altflags & ALTF_SEQPACKET)
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nfsargsp->sotype = SOCK_SEQPACKET;
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#endif
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if (altflags & ALTF_NQNFS) {
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if (force2)
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errx(1, "nqnfs only available with v3");
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force3 = 1;
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nfsargsp->flags |= NFSMNT_NQNFS;
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}
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if (altflags & ALTF_SOFT)
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nfsargsp->flags |= NFSMNT_SOFT;
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if (altflags & ALTF_TCP) {
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nfsargsp->sotype = SOCK_STREAM;
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nfsproto = IPPROTO_TCP;
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}
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if (altflags & ALTF_PORT) {
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port = getmntoptnum(mp, "port");
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}
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if (altflags & ALTF_RSIZE) {
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nfsargsp->rsize =
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(int)getmntoptnum(mp, "rsize");
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nfsargsp->flags |= NFSMNT_RSIZE;
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}
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if (altflags & ALTF_WSIZE) {
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nfsargsp->wsize =
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(int)getmntoptnum(mp, "wsize");
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nfsargsp->flags |= NFSMNT_WSIZE;
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}
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if (altflags & ALTF_RDIRSIZE) {
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nfsargsp->rsize =
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(int)getmntoptnum(mp, "rdirsize");
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nfsargsp->flags |= NFSMNT_READDIRSIZE;
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}
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#if 0
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if (altflags & ALTF_MAXGRPS) {
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set_rpc_maxgrouplist(num);
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nfsargsp->maxgrouplist =
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(int)getmntoptnum(mp, "maxgrps");
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nfsargsp->flags |= NFSMNT_MAXGRPS;
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}
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#endif
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if (altflags & ALTF_LEASETERM) {
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nfsargsp->leaseterm =
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(int)getmntoptnum(mp, "leaseterm");
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nfsargsp->flags |= NFSMNT_LEASETERM;
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}
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if (altflags & ALTF_READAHEAD) {
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nfsargsp->readahead =
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(int)getmntoptnum(mp, "readahead");
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nfsargsp->flags |= NFSMNT_READAHEAD;
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}
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if (altflags & ALTF_DEADTHRESH) {
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nfsargsp->deadthresh =
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(int)getmntoptnum(mp, "deadthresh");
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nfsargsp->flags |= NFSMNT_DEADTHRESH;
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}
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if (altflags & ALTF_TIMEO) {
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nfsargsp->timeo =
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(int)getmntoptnum(mp, "timeo");
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nfsargsp->flags |= NFSMNT_TIMEO;
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}
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if (altflags & ALTF_RETRANS) {
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nfsargsp->retrans =
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(int)getmntoptnum(mp, "retrans");
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nfsargsp->flags |= NFSMNT_RETRANS;
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}
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altflags = 0;
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freemntopts(mp);
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break;
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case 'P':
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nfsargsp->flags |= NFSMNT_RESVPORT;
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break;
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case 'p':
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nfsargsp->flags &= ~NFSMNT_RESVPORT;
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break;
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case 'q':
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if (force2)
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errx(1, "nqnfs only available with v3");
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force3 = 1;
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nfsargsp->flags |= NFSMNT_NQNFS;
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break;
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case 'R':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -R value -- %s", optarg);
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retrycnt = num;
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break;
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case 'r':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -r value -- %s", optarg);
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nfsargsp->rsize = num;
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nfsargsp->flags |= NFSMNT_RSIZE;
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break;
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#ifdef ISO
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case 'S':
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nfsargsp->sotype = SOCK_SEQPACKET;
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break;
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#endif
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case 's':
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nfsargsp->flags |= NFSMNT_SOFT;
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break;
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case 'T':
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nfsargsp->sotype = SOCK_STREAM;
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nfsproto = IPPROTO_TCP;
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break;
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case 't':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -t value -- %s", optarg);
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nfsargsp->timeo = num;
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nfsargsp->flags |= NFSMNT_TIMEO;
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break;
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case 'w':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -w value -- %s", optarg);
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nfsargsp->wsize = num;
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nfsargsp->flags |= NFSMNT_WSIZE;
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break;
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case 'x':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -x value -- %s", optarg);
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nfsargsp->retrans = num;
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nfsargsp->flags |= NFSMNT_RETRANS;
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break;
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case 'X':
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nfsargsp->flags |= NFSMNT_XLATECOOKIE;
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break;
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case 'U':
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mnttcp_ok = 0;
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break;
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default:
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usage();
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break;
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}
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argc -= optind;
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argv += optind;
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if (argc != 2)
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usage();
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spec = *argv++;
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if (realpath(*argv, name) == NULL) /* Check mounton path */
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err(1, "realpath %s", *argv);
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if (strncmp(*argv, name, MAXPATHLEN)) {
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warnx("\"%s\" is a relative path.", *argv);
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warnx("using \"%s\" instead.", name);
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}
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retry:
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if ((mntflags & MNT_GETARGS) != 0) {
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memset(&sa, 0, sizeof(sa));
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nfsargsp->addr = (struct sockaddr *)&sa;
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nfsargsp->addrlen = sizeof(sa);
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} else {
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char *tspec;
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if ((tspec = strdup(spec)) == NULL) {
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err(1, "strdup");
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}
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if (!getnfsargs(tspec, nfsargsp)) {
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exit(1);
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}
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free(tspec);
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}
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if ((retval = mount(MOUNT_NFS, name, mntflags, nfsargsp))) {
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/* Did we just default to v3 on a v2-only kernel?
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* If so, default to v2 & try again */
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if (errno == EPROGMISMATCH &&
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(nfsargsp->flags & NFSMNT_NFSV3) != 0 && !force3) {
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/*
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* fall back to v2. XXX lack of V3 umount.
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*/
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nfsargsp->flags &= ~NFSMNT_NFSV3;
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goto retry;
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}
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}
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if (retval)
|
|
err(1, "%s on %s", spec, name);
|
|
if (mntflags & MNT_GETARGS) {
|
|
shownfsargs(nfsargsp);
|
|
return (0);
|
|
}
|
|
|
|
if (nfsargsp->flags & (NFSMNT_NQNFS | NFSMNT_KERB)) {
|
|
if ((opflags & ISBGRND) == 0) {
|
|
if ((i = fork()) != 0) {
|
|
if (i == -1)
|
|
err(1, "nqnfs 1");
|
|
exit(0);
|
|
}
|
|
(void) setsid();
|
|
(void) close(STDIN_FILENO);
|
|
(void) close(STDOUT_FILENO);
|
|
(void) close(STDERR_FILENO);
|
|
(void) chdir("/");
|
|
}
|
|
openlog("mount_nfs", LOG_PID, LOG_DAEMON);
|
|
nfssvc_flag = NFSSVC_MNTD;
|
|
ncd.ncd_dirp = name;
|
|
while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
|
|
if (errno != ENEEDAUTH) {
|
|
syslog(LOG_ERR, "nfssvc err %m");
|
|
continue;
|
|
}
|
|
nfssvc_flag =
|
|
NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
|
|
}
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
static void
|
|
shownfsargs(const struct nfs_args *nfsargsp)
|
|
{
|
|
char fbuf[2048];
|
|
char host[NI_MAXHOST], serv[NI_MAXSERV];
|
|
int error;
|
|
|
|
(void)snprintb(fbuf, sizeof(fbuf), NFSMNT_BITS, nfsargsp->flags);
|
|
if (nfsargsp->addr != NULL) {
|
|
error = getnameinfo(nfsargsp->addr, nfsargsp->addrlen, host,
|
|
sizeof(host), serv, sizeof(serv),
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
if (error != 0)
|
|
warnx("getnameinfo: %s", gai_strerror(error));
|
|
} else
|
|
error = -1;
|
|
|
|
if (error == 0)
|
|
printf("addr=%s, port=%s, addrlen=%d, ",
|
|
host, serv, nfsargsp->addrlen);
|
|
printf("sotype=%d, proto=%d, fhsize=%d, "
|
|
"flags=%s, wsize=%d, rsize=%d, readdirsize=%d, timeo=%d, "
|
|
"retrans=%d, maxgrouplist=%d, readahead=%d, leaseterm=%d, "
|
|
"deadthresh=%d\n",
|
|
nfsargsp->sotype,
|
|
nfsargsp->proto,
|
|
nfsargsp->fhsize,
|
|
fbuf,
|
|
nfsargsp->wsize,
|
|
nfsargsp->rsize,
|
|
nfsargsp->readdirsize,
|
|
nfsargsp->timeo,
|
|
nfsargsp->retrans,
|
|
nfsargsp->maxgrouplist,
|
|
nfsargsp->readahead,
|
|
nfsargsp->leaseterm,
|
|
nfsargsp->deadthresh);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "usage: mount_nfs %s\n%s\n%s\n%s\n%s\n",
|
|
"[-23bcCdilpPqsTUX] [-a maxreadahead] [-D deadthresh]",
|
|
"\t[-g maxgroups] [-I readdirsize] [-L leaseterm]",
|
|
"\t[-o options] [-R retrycnt] [-r readsize] [-t timeout]",
|
|
"\t[-w writesize] [-x retrans]",
|
|
"\trhost:path node");
|
|
exit(1);
|
|
}
|